<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width,initial-scale=1.0">
    <link rel="icon" href="<%= BASE_URL %>favicon.ico">
    <title>vue-hanhua</title>
  </head>
  <body>
    <noscript>
      <strong>We're sorry but v-ie9 doesn't work properly without JavaScript enabled. Please enable it to continue.</strong>
    </noscript>
    <div id="app"></div>
    <!-- built files will be auto injected -->
  </body>
  <script>
      var ie=IEVersion();
      console.log('ieVersion===='+ie)
      if(ie<=8){
          alert("浏览器版本过低，请升级浏览器")
      }
      function IEVersion() {
          var userAgent = navigator.userAgent; //取得浏览器的userAgent字符串
          var isIE = userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1; //判断是否IE<11浏览器
          var isEdge = userAgent.indexOf("Edge") > -1 && !isIE; //判断是否IE的Edge浏览器
          var isIE11 = userAgent.indexOf('Trident') > -1 && userAgent.indexOf("rv:11.0") > -1;
          if(isIE) {
              var reIE = new RegExp("MSIE (\\d+\\.\\d+);");
              reIE.test(userAgent);
              var fIEVersion = parseFloat(RegExp["$1"]);
              console.log(fIEVersion)
              if(fIEVersion == 7) {
                  return 7;
              } else if(fIEVersion == 8) {
                  return 8;
              } else if(fIEVersion == 9) {
                  return 9;
              } else if(fIEVersion == 10) {
                  return 10;
              } else {
                  return 6;//IE版本<=7
              }
          } else if(isEdge) {
              return 'edge';//edge
          } else if(isIE11) {
              return 11; //IE11
          }else{
              return 15;//不是ie浏览器
          }
      }
  </script>
</html>
